My son-in-law's '01 3/4 ton Dodge two wheel drive truck has a major problem! He said his brake calipers won't free up. They are eating the rotors and he doesn't't know why. He is going thru brake shoes like crazy. When they free up, which is not very often, it runs like a bat out of !! His fuel mileage drops 3-4 mpg when it does this. If anyone has had any experience with this problem, he would surely appreciate any feed back. Thanks